121. Global warming is caused by
122. Warming in the stratosphere is mainly caused by:
123. Major consumer of wood from forest is ___________
124. _________ is the 12th Mega Biodiverse Country in the world.
125. Which plants die after flowering?
126. Although the polar regions radiate away more heat energy than they receive by insolation in the course of a year, they are prevented from becoming progressively colder each year by the:
127. The intermediate developmental stages in the ecological succession is called
128. The final stable community in an ecological succession is called the
129. Typically, water vapour occupies about what percentage of the air's volume near the earth's surface?
130. Heavy dust can cause
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